/*
 * Created on 1 Nov 2006
 * Created by Paul Gardner
 * Copyright (C) Azureus Software, Inc, All Rights Reserved.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 */

package com.aelitis.azureus.core.networkmanager.admin.impl;

import java.net.InetAddress;

import org.gudy.azureus2.plugins.PluginInterface;

import com.aelitis.azureus.core.AzureusCore;
import com.aelitis.azureus.core.networkmanager.admin.NetworkAdminException;
import com.aelitis.azureus.core.networkmanager.admin.NetworkAdminNetworkInterfaceAddress;
import com.aelitis.azureus.core.networkmanager.admin.NetworkAdminProgressListener;
import com.aelitis.azureus.core.networkmanager.admin.NetworkAdminProtocol;
import com.aelitis.azureus.plugins.upnp.UPnPMapping;
import com.aelitis.azureus.plugins.upnp.UPnPPlugin;

public class NetworkAdminProtocolImpl implements NetworkAdminProtocol {
    private AzureusCore core;
    private int type;
    private int port;

    protected NetworkAdminProtocolImpl(AzureusCore _core, int _type) {
        core = _core;
        type = _type;
        port = -1;
    }

    protected NetworkAdminProtocolImpl(AzureusCore _core, int _type, int _port) {
        core = _core;
        type = _type;
        port = _port;
    }

    public int getType() {
        return (type);
    }

    public int getPort() {
        return (port);
    }

    public InetAddress test(NetworkAdminNetworkInterfaceAddress address)

    throws NetworkAdminException {
        return (test(address, null));
    }

    public InetAddress test(NetworkAdminNetworkInterfaceAddress address, boolean upnp_map, NetworkAdminProgressListener listener)

    throws NetworkAdminException {
        InetAddress bind_ip = address == null ? null : address.getAddress();

        NetworkAdminProtocolTester tester;

        if (type == PT_HTTP) {

            tester = new NetworkAdminHTTPTester(core, listener);

        } else if (type == PT_TCP) {

            tester = new NetworkAdminTCPTester(core, listener);

        } else {

            tester = new NetworkAdminUDPTester(core, listener);
        }

        InetAddress res;

        if (port <= 0) {

            res = tester.testOutbound(bind_ip, 0);

        } else {

            UPnPMapping new_mapping = null;

            if (upnp_map) {

                PluginInterface pi_upnp = core.getPluginManager().getPluginInterfaceByClass(UPnPPlugin.class);

                if (pi_upnp != null) {

                    UPnPPlugin upnp = (UPnPPlugin) pi_upnp.getPlugin();

                    UPnPMapping mapping = upnp.getMapping(type != PT_UDP, port);

                    if (mapping == null) {

                        new_mapping = mapping = upnp.addMapping("NAT Tester", type != PT_UDP, port, true);

                        // give UPnP a chance to work

                        try {
                            Thread.sleep(500);

                        } catch (Throwable e) {

                        }
                    }
                }
            }

            try {
                res = tester.testInbound(bind_ip, port);

            } finally {

                if (new_mapping != null) {

                    new_mapping.destroy();
                }
            }
        }

        return (res);
    }

    public InetAddress test(NetworkAdminNetworkInterfaceAddress address, NetworkAdminProgressListener listener)

    throws NetworkAdminException {
        return (test(address, false, listener));
    }

    public String getTypeString() {
        String res;

        if (type == PT_HTTP) {

            res = "HTTP";

        } else if (type == PT_TCP) {

            res = "TCP";

        } else {

            res = "UDP";
        }

        return (res);
    }

    public String getName() {
        String res = getTypeString();

        if (port == -1) {

            return (res + " outbound");

        } else {

            return (res + " port " + port + " inbound");
        }
    }
}
